He told ESPN's Joe Tessitore that his phone died, causing him to oversleep. That led to a mutual decision that Manziel would leave the Manning Passing Academy. He added that he has since talked to both Peyton and Eli Manning.

Tessitore pressed Manziel on the rumors and asked whether the Aggies QB was hung over.

"Absolutely not," Manziel said.

But when Tessitore asked whether Manziel had consumed alcohol, the QB said "I'm not going into details" about the social activities he took part in at the camp.

Manziel acknowledged that his offseason exploits, most of which he has detailed on his own Twitter account, might have "rubbed people the wrong way."